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Alleviating congestion in a cable modem

a cable modem and congestion technology, applied in the field of congestion elimination in cable modems, can solve problems such as modems not being prioritized

Active Publication Date: 2018-03-13
AVAGO TECH INT SALES PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text describes a solution to the problem of congestion in cable modems, which can occur when there are too many packets with higher priority being discarded while lower priority packets are stored and processed. The invention proposes a method for prioritizing the incoming traffic and filtering out unnecessary packets, which can improve the overall efficiency of the communication system. The technical effect of this invention is to reduce congestion in cable modems and improve the overall performance of the communication system.

Problems solved by technology

However, typical cable modems do not prioritize incoming traffic.

Method used

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  • Alleviating congestion in a cable modem
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  • Alleviating congestion in a cable modem

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Embodiment Construction

[0015]While the present disclosure is described herein with reference to illustrative embodiments for particular applications, it should be understood that the disclosure is not limited thereto. Those skilled in the art with access to the teachings provided herein will recognize additional modifications, applications, and embodiments within the scope thereof and additional fields in which the disclosure would be of significant utility.

[0016]FIG. 1 illustrates an example system 100 according to an embodiment. System 100 includes a cable modem termination system (CMTS) 102 coupled to one or more cable modems (CMs) 104a-n via a HFC network 106. Each cable modem 104 may be coupled to one or more client devices 112a-n. In embodiments presented herein, “n” is an arbitrary positive integer.

[0017]CMTS 102 may include a media access controller (MAC) 120, and a physical layer (PHY) 121 that includes a downstream physical layer modulator (DS PHY) 124 and an upstream physical layer demodulator ...

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Abstract

A method, system and computer program product for ingress level filtering of packets is provided. The system includes a Media Access Control (MAC) and a buffer pool that includes buffers configured to store packets. The MAC includes a memory configured to store an incoming packet and an inspection engine coupled to the memory. The inspection engine is configured to parse the incoming packet to determine a priority level of the incoming packet, determine whether there is a buffer available in the buffer pool to store the incoming packet, and allocate a buffer in the buffer pool to store the incoming packet based on the priority level of the incoming packet.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of U.S. Provisional Application No. 61 / 526,504, filed Aug. 23, 2011, which is incorporated herein by reference in its entirety.BACKGROUND OF THE INVENTION[0002]Field of the Invention[0003]The invention is generally related to alleviating congestion in a cable modem.[0004]Background Art[0005]Cable television (CATV) systems are no longer limited to only providing television programs to viewers. In addition, they provide internet access, and / or other services to consumers via signals transmitted to customer premises by optical fibers, coaxial and other cables and local radio channels, such as Wi-Fi, Bluetooth®, etc., all in contrast to traditional over-the-air radio wave broadcasting of television programming.[0006]A CATV system may utilize Data Over Cable Service Interface Specification (DOCSIS) compliant equipment and protocols to carry out a transfer of information, such as video, audio, and / or data bet...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): H04L12/801H04L12/28H04L12/851H04L12/861
CPCH04L47/12H04L12/2801H04L49/9047H04L47/2441H04L47/245H04L61/00
Inventor PULLEN, DAVID
Owner AVAGO TECH INT SALES PTE LTD